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Re: Installing Octave via Home-brew on MacOS

From: Andrew Janke
Subject: Re: Installing Octave via Home-brew on MacOS
Date: Tue, 17 Nov 2020 06:21:57 -0500
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:78.0) Gecko/20100101 Thunderbird/78.4.3

On 11/16/20 6:42 PM, oleg efimov wrote:
Dear Octave,

We are trying to install Octave on macOS into the usr/bin

And this is via the home brew.
> [...]
[...] >

Hi Oleg,

Is there a particular reason you're installing Octave into /usr instead of Homebrew's default location of /usr/local? /usr/bin is a system-controlled directory and is going to be protected using macOS's special access controls. You should not install anything there. Using Homebrew to install to /usr instead of /usr/local is not recommended or supported.

> GUI version is very nice. Although we are just running another open source scripts that are dependent on the terminal command we would just have to have Octave in its default directory to be installed on the system.

There is no single default directory for Octave: if you build from source it goes into /usr/local or wherever you point it; Homebrew puts it in /usr/local or whatever your $PREFIX is; MacPorts puts it in /opt or something like that; Snap and Flatpak put it wherever they put it; and Linux distributions put it in /usr. If your project requires the `octave` command, it should either use $PATH to locate it, or search in several locations for it. I'd suggest adding a specific $MYAPP_OCTAVE_HOME environment variable to your project so users can point it to wherever they have Octave installed. 'Tis the nature of Unix.

You can also install the Octave 6 release candidate with:

$ brew install octave-app/octave-app/octave@6.0.90


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